@Daniel
We’re not giving a notification on 7.1.2 because it contains very targeted fixes, meaning that most 7.1.x users wouldn’t tell any difference, so why bother them?
Reg. two installations, how many Visual Studio versions do you have installed on your machine? Is it possible that you have 7.1 installed in one VS version and 7.1.1 in another VS version?

@Daniel The latest R# 7.1.2 has critical fixes related to installer. So, if you have not only one R# instance under installed programs do not panic. Just try to uninstall both of them and reinstall R# 7.1.2 again.

Still have problem with mstest runner. Stopping the tests (2 time press on stop button) does not stop the vstest.executionengine_x86.exe and all tests continue to run. They are also being updated (goes green) in the test list.

Let me repost my feedback for the previous release of ReSharper – it is still broken exactly the same way. All my MSTest unit tests are failing because the CONFIG file that they depond on are not present in the folder where ReSharper runs the tests.